25604674678 has 16 divisors (see below), whose sum is σ = 44363180304. Its totient is φ = 10953871360.

The previous prime is 25604674639. The next prime is 25604674717. The reversal of 25604674678 is 87647640652.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25604674639) and next prime (25604674717).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34230475 + ... + 34231222.

It is an arithmetic number, because the mean of its divisors is an integer number (2772698769).

Almost surely, 2^25604674678 is an apocalyptic number.

25604674678 is a deficient number, since it is larger than the sum of its proper divisors (18758505626).

25604674678 is a wasteful number, since it uses less digits than its factorization.

25604674678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68461727.

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 25604674678 in words is "twenty-five billion, six hundred four million, six hundred seventy-four thousand, six hundred seventy-eight".